test_cmp expected diff
'
+test_expect_success 'diffs can be colorized' '
+ git reset --hard &&
+
+ # force color even though the test script has no terminal
+ test_config color.ui always &&
+
+ echo content >test &&
+ printf y | git add -p >output 2>&1 &&
+
+ # We do not want to depend on the exact coloring scheme
+ # git uses for diffs, so just check that we saw some kind of color.
+ grep "$(printf "\\033")" output
+'
+
+test_expect_success 'patch-mode via -i prompts for files' '
+ git reset --hard &&
+
+ echo one >file &&
+ echo two >test &&
+ git add -i <<-\EOF &&
+ patch
+ test
+
+ y
+ quit
+ EOF
+
+ echo test >expect &&
+ git diff --cached --name-only >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'add -p handles globs' '
+ git reset --hard &&
+
+ mkdir -p subdir &&
+ echo base >one.c &&
+ echo base >subdir/two.c &&
+ git add "*.c" &&
+ git commit -m base &&
+
+ echo change >one.c &&
+ echo change >subdir/two.c &&
+ git add -p "*.c" <<-\EOF &&
+ y
+ y
+ EOF
+
+ cat >expect <<-\EOF &&
+ one.c
+ subdir/two.c
+ EOF
+ git diff --cached --name-only >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'add -p handles relative paths' '
+ git reset --hard &&
+
+ echo base >relpath.c &&
+ git add "*.c" &&
+ git commit -m relpath &&
+
+ echo change >relpath.c &&
+ mkdir -p subdir &&
+ git -C subdir add -p .. 2>error <<-\EOF &&
+ y
+ EOF
+
+ test_must_be_empty error &&
+
+ cat >expect <<-\EOF &&
+ relpath.c
+ EOF
+ git diff --cached --name-only >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'add -p does not expand argument lists' '
+ git reset --hard &&
+
+ echo content >not-changed &&
+ git add not-changed &&
+ git commit -m "add not-changed file" &&
+
+ echo change >file &&
+ GIT_TRACE=$(pwd)/trace.out git add -p . <<-\EOF &&
+ y
+ EOF
+
+ # we know that "file" must be mentioned since we actually
+ # update it, but we want to be sure that our "." pathspec
+ # was not expanded into the argument list of any command.
+ # So look only for "not-changed".
+ ! grep not-changed trace.out
+'
+
+test_expect_success 'hunk-editing handles custom comment char' '
+ git reset --hard &&
+ echo change >>file &&
+ test_config core.commentChar "\$" &&
+ echo e | GIT_EDITOR=true git add -p &&
+ git diff --exit-code
+'
+
test_done